Road-grading device



Aug. 8, 1939. E. w. BAYES ROAD-GRADING: DEVICE Original Filed Sept. 8, 1937 2 Sheets-Sheet 1 Elij h w INVENTOR ATTORNEYS E. W. BAYES ROAD-GRADING DEVICE Aug. 8, 1939.

Original Filed Sept. 8, 1937 2 Sheets-Sheet 2 ATTORN EYS Patented Aug. 8, 1939 UNITED STATS PATENT OFFICE Application September 8, 1937, Serial No. 162,930 Renewed April 17, 1939 6 Claims.

My invention relates to new and novel improvements in road grading devices and more particularly to that type adapted to be attached to road grading machines for operating upon windrows formed by the grading and resurfacing of roads.

One of the principal objects of my invention is to provide a road grading device for operating upon windrows formed in the grading and resurfacing of highways and the like in a manner to effect passages therethrough for drainage. Another object of my invention is to provide a device of the above described character which may be readily attached to road grading machines already in use and capable of operation by a source of power on said machines.

A further object of my invention is to provide a windrow device equipped with means whereby said device may be adjusted relative to the surface of the highway.

A still further object of my invention is to provide a device of the above described character equipped with means whereby the windrow blade may be adjusted for use on either side of the. road grading machine.

' Other objects and advantages will be apparent from the following description, appended claims and annexed drawings.

Referring to the drawings wherein like reference characters designate like parts throughout the several views:

Fig. 1 is a rear elevation of my invention attached to the rear of a road grading machine.

Fig, 2 is a side elevation thereof.

Fig. 3 is a top plan view of my invention.

Fig. 4 is a detail sectional View taken on a line 44 of Fig. 1.

Fig. 5 is a detail sectional view taken on a line 5-5 of Fig. 1.

' Fig. 6 is a detail sectional view taken on a 1ine.6 --B of Fig. 1.

My invention. comprises, in the preferred embodimentillustrated in the drawings, a frame HI pivotally supported on the rear end of a chassis frame ll of a road grading machine l2.

The frame Ill comprises a longitudinally extending channel iron l3 having secured to the ends thereof a pair of spaced strap irons 14 forming a substantially half circle configuration. The ends of the inner strap iron [5 are offset to embrace the outer faces of the channel iron 13 and extend a distance above the upper plane of said iron. The ends. of the outer strap iron I B are likewise offset and nest within the channel in the iron l3, the ends extending above said channel iron and bent to form folds within which the ends of the iron l5 are secured. Adjacent the folds, the end sections of the iron l6 are inclined inwardly and downwardly to form guiding surfaces for a windrow arm IT,

The windrow arm I1 is of channeled formation and pivoted at one end between the sides of the U-shaped strap l8 secured about the iron l3 by means of a pivot pin l9, said strap being secured to the iron l3 centrally between the ends thereof. v The opposite end of the arm ll extends laterally 1'0 beyond an end of the frame H] and has secured thereto a windrow blade adapted for operation uponwindrows of road material formed in grading and resurfacing of roads.

Secured to the arm I! adjacent the inner end of the blade 28 is a coupling 2| formed with a pair of eyes 22, one of said eyes having secured thereto one end of a cable 23 interposed between the irons I5 and I 6 and adapted for operation over a pair of pulleys 24 mounted between saidirons and laterally of the center of the frame. Secured to the outer face of the strap l8 adjacent the iron I5 is a bracket 25 having mounted therein a pulley 26 over which the cable 23 operates, the opposite end of said cable being secured to a power source (not shown) carried by the road grading machine l2. While it is desirable that the cable may be actuated by a power source operated in connection with the main power source of the machine, it is to be understood that manual means may be employed for actuating the cable. Secured on the outer face of the iron I5 is a pair of brackets 21 having pivoted thereto connecting rods 28 pivotally mounted on the chassis]! as at 29. The rear end of the '35 chassis H is provided with bearing brackets 30 having journaled therein a transversely extending shaft 3|, the ends of said shaft having connected thereto the ends of chains 32 secured to the lower ends of the iron l3. Adjacent one of the bearing brackets 3|] the shaft is provided with a ratchet wheel 33 coacting with a pawl 34 mounted on the bearing bracket and the ad- J'acent end of the shaft is faced as at 35 for connection with a crank (not shown) whereby the shaft 3| is rotated.

Mounted betweenthe irons l5 and I6 is another pair of pulleys 36 oppositely disposed from the pulleys 24 and adapted to receive the cable 23 when the arm I! is positioned on the opposite 50 side of the frame I 0.

v In operation, the frame i0 is adjusted relative to the surface of the ground by rotation of the shaft 3|, which elevates or lowers the frame through the medium of the chains 32 attached thereto, the connecting rod 28 being adapted for movement relative to the frame and chassis serves to prevent lateral movement of the frame relative to the chassis. The arm I! may be lowered or elevated a desired distance from the surface of the ground through the medium of the cable 23 thereby permitting passages to be formed in the windrows for the purpose of permitting water to drain off of the road surface. When it is desired to have the arm positioned upon the opposite side of the frame for operation upon windrows adjacent said side, the cable 23 is disconnected from the eye on the coupling and the arm I! is swung about the pivot pin l9 and positioned on the opposite side of the frame as indicated in dotted lines in Fig. 1. In this position the end of the cable 23 is passed over the pulleys 36 and connected to the opposite eye on the coupling 2|. Operation of the cable serves to raise and lower the blade 20 carried bythe arm I! for forming passages in the windrow.

From the foregoing, it will be apparent that my invention may be readily attached to a road grading machine and operated to form passages in the windrows for permitting water to drain therethrough from the road surface and that the same may be also utilized for effectively grading the sides of roads.

What I claim is:

1. A device of the character described, comprising, a frame for attachment to the rear end of a road grading machine and fashioned with a pair of spaced vertically disposed semicircular frame members having angularly disposed end sections forming brackets and a transversely extending member connected to and extending between said brackets, an arm pivoted to said transversely extending member intermediate the ends thereof and swingable to positions within said brackets and laterally of said frame, a blade secured to the end of said arm and adapted for engagement with a road surface, and means carried between said semicircular members for opcrating said arm from a power source on said machine.

2. A device of the character described, comprising, a frame for attachment to the rear end of a road grading machine and fashioned with a pair of spaced vertically disposed semicircular frame members having angularly disposed end sections forming brackets and a transversely extending member connected to and extending between said brackets, an arm pivoted to said transversely extending member intermediate the ends thereof and swingable to positions within said brackets and laterally of said frame, a blade secured to the end of said arm and adapted for engagement with a road surface, means carried between said semicircular members for operating said arm from a power source on said machine, and means for elevating said frame for adjustment relative to a road surface.

3. A device of the character described, comprising, a frame for attachment to the rear end of a road grading machine and fashioned with a pair of spaced vertically disposed semicircular frame members having angularly disposed end sections forming brackets and a transversely extending member connected to and extending between said brackets, an arm pivoted to said transversely extending member intermediate the ends thereof and swingable to positions within said brackets and laterally of said frame, a blade secured to the end of said arm and adapted for engagement with a road surface, a cable carried between said semicircular members and secured to said arm and operable for adjusting said arm within said brackets and relative to a road surface whereby said blade is raised and lowered to form passages in windrows.

4. A device of the character described, comprising, a frame for attachment to the rear end of a road grading machine and fashioned with a pair of spaced vertically disposed semicircular frame members having angularly disposed end sections forming brackets and a transversely extending member connected to and extending between said brackets, an arm pivoted to said transversely extending member intermediate the ends thereof and swingable to positions within said brackets and laterally of said frame, a blade secured to the end of said arm and adapted for engagement with a road surface, a cable carried between said semicircular members and secured to said arm and operable for adjusting said arm within said brackets and relative to a road surface whereby said blade is raised and lowered to form passages in windrows, and means for elevating said frame for adjustment relative to a road surface.

5. A device of the character described, comprising, a frame for attachment to the rear end of a road grading machine and fashioned with a pair of spaced vertically disposed semicircular frame members having angularly disposed end sections forming brackets and a transversely extending member connected to and extending between said brackets, an arm pivoted to said transversely extending member intermediate the ends thereof and swingable to positions within said brackets and laterally of said frame, a blade secured to the end of said arm and adapted for engagement with a road surface, a cable carried between said semicircular members and associated with said arm and operable for adjusting said arm within said brackets and relative to a road surface whereby said blade is raised and lowered to form passages in windrows, means for elevating said frame for adjustment relative to a road surface, and coupling means connecting said arm to said cable and operable to permit positioning of said arm and said cable in operating position on an opposite side of said frame.

6. A device of the character described, comprising, a frame for attachment to the rear end of a road grading machine and fashioned with a pair of spaced Vertically disposed semicircular frame members having angularly disposed end sections forming brackets and a transversely extending member connected to and extending between said brackets, an arm pivoted to said transversely extending member intermediate the ends thereof and swingable to positions within said brackets and laterally of said frame, a blade secured to the end of said arm and adapted for engagement with a road surface, a cable carried between said semicircular members and associated with said arm and operable for adjusting said arm within said brackets and relative to a road surface whereby said blade is raised and lowered to form passages in windrows, and coupling means connecting said arm to said cable and operable to permit positioning of said arm and said cable in operating position on an opposite side of said frame.

ELIJAH W. BAYES. 

